Obama on Syria: Chemical Weapons a 'Game Changer'

President Obama discusses with reporters the recent evidence of Syria's use of chemical weapons in that country's ongoing civil war.

This transcript has been automatically generated and may not be 100% accurate.

I ... once cheery ... ideas import understand that for ... several years now we've been saying is slowly unfolding ... of ... disaster for the Syrian people ... and this is not a situation which we've been ... simply bystanders to western half ... my policy from the beginning has been that ... present us are ... Wall Street a building ... that the ... taxes on people ... has killed ... his own people ... unleashed a military against innocent civilians ... and that the only way to bring stability and peace ... to Syria ... is going before us up to step down and to pay for political transition ... in pursuit of that strategy we organize the international community ... we are the largest humanitarian door ... we have worked to strengthen the opposition ... we have provided nonlethal assistance to the opposition ... we have applied sanctions on Syria sold ... there are a whole host of steps that we've been taking precisely because ... even separate from ... the chemical weapons as to ... what's happening in Syria is a blemish on ... the international community generally and we gotta make sure we're doing everything we can ... cite uncertainty ... in that context what I've also said ... is that ... the use of chemical weapons would be a game changer ... but somewhere for the United States but for the international community ... and the reason for that is that we have established international law and international norms ... that say when you use ... these kinds of what ... you have the potential ... of ... killing ... massive numbers of people ... in the most inhumane way possible ... and the proliferation risks are so significant that ... we don't want that genie out of the law ... so what I said that ... the use of chemical weapons would be a game changer ... that was an unique to that was in a position unique to the United States ... it should've been a surprise ... and ... what we now have is evidence that chemical weapons have been used ... inside Syria but we don't know ... how they were used when they will use ... who would use ... we don't have a chain of ... custody that establishes what exactly happened ... and ... when I am making decisions about ... America's national security and the potential for taking additional action ... in response to ... chemical weapon use ... of the men tried out the facts ... that's what the American people would expect ... and ... if we end up ... rushing to judgment ... without ... for the effect of evidence ... then we can find ourselves in a position were we can mobilize international community to support what we do ... there may be ... objections even among some ... people in the region ... were sympathetic with the opposition if we take action ... so you know it it's important for us to do the supreme life